ghc-7.0.3: The GHC API
CmmZipUtil
Synopsis
zipPreds :: LastNode l => LGraph m l -> BlockEnv BlockSetSource
Compute the predecessors of each reachable block
givesUniquePredecessorTo :: LastNode l => LGraph m l -> BlockId -> BoolSource
Tell if a graph gives a block a unique predecessor. For efficiency, this function is designed to be partially applied.